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Add extract-ikconfig support for kernel images compressed with zstd.
Signed-off-by: Thitat Auareesuksakul <thitat@flux.ci>
Tested-by: Nicolas Schier <n.schier@avm.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Support for kernel image LZ4 compression was added around 3.11, but not
the corresponding kernel .config extraction.
This makes possible extracting the kernel config for LZ4-compressed
kernels you're not running, or the current LZ4-compressed kernel if
compiled without /proc/config.gz support.
Signed-off-by: Alex Pilon <alp+linux@alexpilon.ca>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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Add support for kernels compressed with xz to the extract-ikconfig script.
Signed-off-by: Dick Streefland <dick@streefland.net>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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Add support for kernels compressed with bzip2, lzma or lzo to the
extract-ikconfig script.
Fixes kernel bugzilla #19852:
https://bugzilla.kernel.org/show_bug.cgi?id=19852
Signed-off-by: Dick Streefland <dick@streefland.net>
Tested-by: Justin <jlec@gentoo.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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I've rewritten the extract-ikconfig script to extract the kernel
configuration from a kernel compiled with CONFIG_IKCONFIG. The main
motivation for the rewrite was to remove the dependency on the
external C program binoffset.c, which is compiled on the initial run.
The binoffset executable is invoked with a relative path, which means
that the old script can only be run from the top of the kernel tree,
and only when you have write permission in the scripts directory.
The new script uses tr/grep/tail/zcat only, and can be invoked from
anywhere. The binoffset.c program has been removed. This script
requires GNU grep 2.5 (released 2002-03-13) or higher, because the -o
option was introduced in that version.
Signed-off-by: Dick Streefland <dick@streefland.net>
LKML-Reference: <20091006203540.GA14634@streefland.net>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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It would be nice to use extract-ikconfig to find the congfig.gz
in either vmlinux (not vmlinuz) or configs.ko.
This patch changes the script to also be able to read ELF files directly.
[ Impact: find config.gz in vmlinux and configs.ko ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Both start and end should be tested for existence before continuing
to parse the config.gz file.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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unbashify-extract-ikconfig.patch
scripts/extract-ikconfig contains a lot of gratuituous bashisms,
which make it fail if /bin/sh isn't bash. This patch replaces them
with regular Bourne shell constructs.
Signed-off-by: Werner Almesberger <werner@openmoko.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com> # as file author
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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From: Andy Whitcroft <apw@shadowen.org>
Being able to recover the configuration from a kernel is very useful and it
would be nice to default this option to Yes. Currently, to have the config
available both from the image (using extract-ikconfig) and via /proc we
keep two copies of the original .config in the kernel. One in plain text
and one gzip compressed. This is not optimal.
This patch removes the plain text version of the configuration and updates
the extraction tools to locate and use the gzip'd version of the file.
This has the added bonus of providing us with the exact same results in
both cases, the original .config; including the comments.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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From carbonated beverage <ramune@net-ronin.org>.
[ "carbonated beverage"? WTF? I think I need a cool handle too ;]
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(Randy Dunlap)
Build the kernel config data into the kernel - either unloaded or accessible
via /proc
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